﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace ASPEfCore
{
    public class Startup
    {
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            //services.AddSingleton<IWelcomeService, WelcomService>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(
            IApplicationBuilder app,
            IHostingEnvironment env,
            IConfiguration configuration,
            ILogger<Startup>logger)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseExceptionHandler();
            }
            app.Use(next =>
            {
                logger.LogInformation("app.Use().....");
                return async httpContext =>
                {
                    logger.LogInformation("----async httpContext");
                    if (httpContext.Request.Path.StartsWithSegments("/first"))
                    {
                        logger.LogInformation("----aaaaa!!!!");
                        await httpContext.Response.WriteAsync("aaaaaa");
                    }
                    else
                    {
                        logger.LogInformation("----next(httpContext)");
                        await next(httpContext);
                    }
                };
            });
            //app.UseDefaultFiles();
            //app.UseStaticFiles();
            app.UseFileServer();
            //app.UseWelcomePage(new WelcomePageOptions
            //{
            //    Path = "/welcome"
            //});
            //app.UseWelcomePage();

            app.Run(async (context) =>
            {
                var welcome = configuration["Welcome"];
                await context.Response.WriteAsync(welcome);
            });
        }
    }
}
